Collyn, There is a book "Cemetery Records of Knox County, Ohio." Must be more than one volume, because the copied pages that I have says volume one. Unfortunately, I do not have the names that you are looking for. I checked, just in case, but no luck. I am sure you can find this book at the Mount Vernon Library, or if in Salt Lake City, at the HL, which is where I originally made my copies. Quite possibly your local FHC can do an interlibrary loan for you in order to have access to use it. A number of my husband's relatives were buried there. We are planning a trip to Ohio for the holidays, and if you are still in need of some information, maybe I can help you then. Let me know if you do. According to the index in the book, Martinsburg Presbyterian is listed on pages 74-100. Good luck, I am sorry I couldn't be of more help to you. Pat in Florida